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PaulM

How to change screen resolution? (LCIII, System 7.1)

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I just got an very nice LCIII on eBay with an Apple IIe card, Apple CD 300, and an apple color monitor. Still exploring how awesome this machine is... its all in great shape and everything is running well. I have read that the LCIII supports different video resolutions but can't find a Control Panel or other way to change it. I can change the number of colors (B/W, 256, thousands) but don't see an explicit way to change the resolution (I have read it supports resolutions of 512 x 384, 640 x 480, 640 x 870, and 832 x 624 - depending on VRAM of course and maybe on monitor?) Thanks.

Edited by PaulM

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Depending on what monitor you have it hooked to changing resolutions might not be an option. Many of Apple's low-end monitors at the time were fixed frequency and only did the one resolution. (The ones paired with an LCIII were most commonly either 512x384 or 640x480 only.)

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Makes sense.... I will research the monitor part number. But, if the monitor and VRAM did support different resolutions, how would I set that? In the same CDEV where you set the number of colors?  Thanks.

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What G said.


Yes, in 7.1 that would be the "Monitors and Sound" Control Panel IIRC? In "Monitors and Sound" and the later "Monitors" Control panels there's a menu choice for "Recommend Resolutions" and "All Resolutions" listings. Many times you can find something that will work much better under "All Resolution" than under Apple's recommendations if you have a more capable (later, multisync) monitor from Apple or just about anything from any Display Vendor outside of Apple.

 

From the sound of it you'll be wanting to reference gamba's  VIDEO: CPU & Monitor Matrix to see what's possible with the combination you have on hand or can improve upon in terms of color depth. The VIDEO: Card & Monitor Matrix will be more helpful in terms of resolutions. Everything above the "Multisync Divide" is a dead end in terms of getting a better resolution.

 

Again, as G said it depends upon the capabilities of your display,. From your description, it sounds very much like you're locked into a single resolution on one of Apple's early fixed frequency monitors listed above the divide.

Edited by Trash80toHP_Mini

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